Blood Supply

Question 1

The _____ supply goes to the brain and the ____ drainage from the brain

Answer 1

Arterial; venous

Question 2

Impaired blood flow to the brain causes

Answer 2

Lesion, most common - stroke

Question 3

The blood supply is via ______

HINT: 2 arterial systems

Answer 3

Internal Carotid and vertebral Basilar

Question 4

The internal carotid artery (ICA) supplies the

Answer 4

Anterior brain

Question 5

At the level of the optic chiasm, the ICA divides into to branches ____ and ___

Answer 5

Anterior cerebral Artery (ACA)

Middle Cerebral Artery (MCA)

Question 6

The anterior cerebral artery supplies

Answer 6

Orbital and medial aspects of the frontal lobe
Medial parietal lobe
Superior corpus callosum

Question 7

Interruption of the ACA can result in

Answer 7

Paralysis of the leafs and feet.

Lower extremities are represented

Question 8

Anterior Communicating Artery (AC)

Answer 8

Connects the 2 ACA and forms the anterior arc of the circle of willis

Question 9

Damage to the middle cerebral artery may result in

Answer 9

Apraxia
Aphasia
Reading and writing difficulties
Impaired sensory system

Question 10

The middles cerebral artery runs laterally in ____ and between ____ and _____

Answer 10

Sylvia; temporal lobe and insula

Question 11

Which artery arises from the Common Carotid artery?

Answer 11

Internal carotid artery

Question 12

The _______ arises from the ICA near the optic tract

Answer 12

Posterior communicating artery

Question 13

The posterior cerebral arteries supply

HINT: 7

Answer 13

Lower diencephalon
Cerebellum
Brainstem
Anterior temporal lobe
Inferior temporal gyrus
Occipital cortex (primary visual cortex)
Splenium corpus callosum

Question 14

What does the circle of willis connect?

Answer 14

The vertebral-basilar arteries and the Internal Carotid systems

Question 15

What is the role of the circle of willis?

Answer 15

To serve as a safety valve in the event of interruption to blood flow

Question 16

What causes a stroke?

Answer 16

Sudden deprivation of blood to the brain

Question 17

What does thrombosis mean

Answer 17

Clot in artery

Question 18

Embolism is a

Answer 18

Traveling clot

Question 19

T/F: the circle of willis contains all but the posterior cerebral artery

Answer 19

False; middle cerebral artery

Question 20

Which areas are served by the MCA?

Answer 20

Broca’s, Wernicke’s, Supramarginal Gyrus, Areas 3, 1, 2, angular gyrus, somatosensory cortex, Heschl’s gyrus, thalamus, basal ganglia, internal capsule

Question 21

At what level does the ICA divide into its two branches?

Answer 21

Optic chiasm

Question 22

The Anterior Cerebral Artery serves the

Answer 22

Orbital and medial frontal lobes; medial parietal lobe; superior corpus callosum

Question 23

The vertebral basilar is located at the

Answer 23

Posterior brain and above the tentorium cerebelli

Question 24

The internal carotid is located at the

Answer 24

Anterior brain and above the tentorum cerebelli

Question 25

Any interruptions to the blood supply to the brain can cause

Answer 25

Motor and sensory disturbances, cognitive disturbances, and neural tissue death

Question 26

Where doe the posterior cerebral arteries originate?

Answer 26

Upper pons

Question 27

The venous drainage drains into the _____ at the base of the skull

Answer 27

Internal jugular vein

Question 28

Venous drainage includes HINT: 5 sinus

Answer 28

``` Superior sagittal sinus Inferior sagittal sinus Straight sinus Transverse sinus Internal Jugular vein ```

Question 29

Arteries and veins are both called ____

Answer 29

Vessels

Question 30

The internal carotid systems includes

Answer 30

Anterior cerebral artery Anterior communicating artery Middle cerebral artery Posterior communicating artery

Question 31

The veterbral-basilar system includes

Answer 31

Veterbral artery Basilar artery Posterior cerebral artery